Water Intelligence Brief

Bear Lake County, ID | May 15, 2026

1. Situation Summary

Bear Lake County enters the critical mid-May irrigation window under severely stressed water supply conditions. Snowpack across the Bear River Basin has been effectively depleted at nearly all monitored SNOTEL stations, with only trace amounts remaining at the highest-elevation sites. Combined with the context of one of the worst snow years on record in the Mountain West and an extreme early-season heat event that accelerated snowmelt, the seasonal water supply outlook is significantly below normal. Agricultural users should anticipate constrained water availability through the summer irrigation season and begin active risk management planning now.

2. Snowpack Conditions

The snowpack picture for Bear Lake County is stark. As of May 14, 2026, six of eight monitored SNOTEL stations within or adjacent to the Bear River Basin are reporting zero snow water equivalent (SWE) and zero snow depth: Bear River RS, Emigrant Summit, Garden City Summit, Giveout, and Slug Creek Divide have all bottomed out entirely. Emigrant Summit confirms this at 0% of its 11.4" median SWE.

Only two stations retain any measurable snowpack:

- Franklin Basin: 0.7" SWE (4% of its 16.0" median), with 2.0" snow depth

- Tony Grove Lake: 0.7" SWE (2% of its 24.0" median), with 2.0" snow depth

The notable exception is USU Doc Daniel, which records 13.1" SWE (49% of its 26.6" median) and 31.0" snow depth. This station stands apart from the basin-wide pattern and represents the only meaningful remaining snowpack resource, though even at 49% of median it reflects well-below-normal conditions for this date. Users should monitor this station closely for melt timing and contribution to late-season flows.

The overall basin-level snowpack picture represents a near-complete loss of the seasonal water reservoir that typically sustains summer irrigation supplies.

3. Streamflow Conditions

Current USGS gauge readings across the Bear River Basin present a mixed signal, reflecting the transition from what limited snowmelt remains to predominantly base-flow conditions.

Key readings as of May 15, 2026:

The Pescadero gauge — the most directly relevant to Bear Lake County diversions — reads 502 cfs but is falling, suggesting the spring pulse is past or waning at this point in the system. Falling trends at Pescadero, Corinne, and the Little Bear River indicate declining snowmelt contribution to mainstem flows. The rising signals at Border and Logan River may reflect localized melt contributions from remaining high-elevation snowpack, including the USU Doc Daniel area. However, given the overall depleted snowpack, these rising signals are unlikely to represent sustained increases. Agricultural users relying on direct Bear River diversions should not interpret current flows as indicative of the summer baseline.

4. Key Reservoir Systems

The primary storage resources relevant to Bear Lake County agricultural users are:

- Bear Lake — The dominant regional multi-year storage reservoir in the system. Bear Lake is managed under a Federal Energy Regulatory Commission (FERC) license (Project No. P-20) held by PacifiCorp in coordination with the Bear River Commission. This is not a Bureau of Reclamation facility. Current storage status should be obtained directly from PacifiCorp or the Bear River Commission.

- Montpelier Reservoir — A smaller local storage facility on Montpelier Creek serving more localized agricultural users in the Montpelier area.

Users seeking current storage data should contact PacifiCorp, the Bear River Commission, or the Idaho Department of Water Resources (IDWR) directly. Bear Lake's carry-over storage capacity makes it the most significant buffer against poor snowpack years, but its current fill status is critical intelligence for planning purposes.

5. Water Rights Administration Outlook

Given substantially below-normal snowpack and declining mainstem flows, there is a high likelihood of water rights curtailments affecting junior priority water rights in the Bear River Basin during the summer irrigation season. Idaho water law operates under the prior appropriation doctrine — earlier priority dates are served first when supplies are insufficient to meet all rights.

Bear Lake County water users should:

- Review their priority dates relative to other basin users and assess curtailment exposure honestly

- Contact IDWR's Eastern Regional Office for current administrative status and any active curtailment orders

- Monitor Bear River Commission communications, as interstate coordination between Idaho, Utah, and Wyoming under the Bear River Compact will influence instream flow management

The combination of a severely depleted snowpack and falling flows at key gauges suggests that administrative pressure on the river system is likely to increase materially as summer demand peaks in June and July. Users with junior rights or interruptible water supply agreements should treat curtailment as a realistic planning scenario rather than a remote contingency.

6. Groundwater Considerations

Bear Lake County falls within the Bear River Groundwater Management Area (Bear River GWMA), designated in 2001 by the Idaho Department of Water Resources. The primary aquifer resource for valley-floor agricultural users is the Bear River Valley alluvial aquifer.

In low surface water years, groundwater pumping demand typically increases as irrigation users seek to supplement reduced surface water deliveries. However, users are strongly cautioned to verify their groundwater rights and permitted uses before increasing pumping rates. Within the Bear River GWMA, groundwater and surface water are hydraulically connected in many areas, meaning increased groundwater withdrawals can affect surface water availability and may trigger regulatory response. Contact IDWR for current GWMA conditions and any administrative guidance specific to the 2026 season.

7. Management Recommendations

Immediate Actions (Next 2–4 Weeks)

- Contact your water district or canal company to confirm current delivery schedules and any anticipated reductions in Bear River allocations

- Verify priority date exposure with IDWR's Eastern Regional Office and assess your position relative to potential curtailment orders

- Confirm Bear Lake storage status with PacifiCorp or the Bear River Commission — carry-over storage from Bear Lake is the most consequential variable for mid-to-late summer supplies

- Inventory on-farm water storage capacity (ponds, tanks) and assess feasibility of additional storage before peak demand

Planning Horizon (June–August)

- Develop a tiered irrigation plan that identifies which fields and crops can be prioritized if deliveries are reduced by 25%, 50%, or more

- Identify drought-tolerant crop alternatives or reduced acreage options for the current season while decisions can still be made

- Monitor USU Doc Daniel snowpack melt progression as the primary remaining snowpack resource contributing to late-season flows

Efficiency and Conservation

- Audit irrigation system efficiency and prioritize high-value crops for available water allocations

- Consider deficit irrigation strategies for hay and forage crops where agronomically appropriate

- Evaluate whether temporary water transfers or leases from willing sellers may provide supplemental supply — consult with IDWR on transfer requirements

8. Historical Context

The current conditions in Bear Lake County bear resemblance to several historically difficult water years in the Mountain West. The 2021 drought brought significant curtailments across Idaho and Utah, with agricultural users facing emergency demand management and some operations experiencing substantial production losses. The 2015 drought similarly produced near-record low snowpacks, triggering administrative curtailments and emergency measures that required meaningful agricultural adjustments across the Bear River Basin. The 1977 drought remains a benchmark extreme year in the region's water history, when severely limited supplies led to widespread agricultural hardship and drove lasting changes in water management practices.

The 2026 season, with snowpack approaching or exceeding the severity of those analog years at most monitored stations, warrants serious preparation. Users who treated those years as planning exercises rather than reactive crises consistently managed better outcomes.